| Alice Katherine Carpenter | Secretary | 15 Jul 2023 | 20 Nov 2023 | - | - |
| Amanda Jane Rendle | Director | 7 Dec 2017 | 7 Sept 2021 | British | 63 years |
| Barbara Lawson Anderson | Director | 13 Oct 2021 | 13 Oct 2024 | British | 58 years |
| Caroline Inez Green | Director | 24 Jun 2014 | 23 Jun 2017 | British | 58 years |
| Caroline Inez Green | Director | 20 Jul 2017 | 19 Jan 2019 | British | 58 years |
| Catherine Elizabeth Lewis La Torre | Director | 1 Sept 2020 | 1 Oct 2022 | British | 61 years |
| Ceri Ivor Daniel Smith | Director | 29 Oct 2013 | 18 Apr 2021 | British | 53 years |
| Christina Margaret Mccomb | Director | 29 Oct 2013 | 15 Nov 2019 | British | 70 years |
| Christopher Newton Fox | Director | 13 Jan 2015 | 31 Mar 2020 | British | 56 years |
| Colin Glass | Director | 24 Jun 2014 | 23 Jun 2017 | British | 83 years |
| David Gerard Campbell | Secretary | 25 Oct 2013 | 24 Jun 2014 | British | - |
| Dharmash Pravin Mistry | Director | 1 May 2019 | 30 Apr 2022 | British | 56 years |
| Elizabeth Marie O'neill | Secretary | 15 Feb 2021 | 14 Jul 2023 | - | - |
| James Alexander Robert Connelly | Director | 4 Jan 2022 | 31 Mar 2024 | British | 40 years |
| James Robert Carter | Director | 19 Apr 2021 | 26 Jul 2024 | British | 43 years |
| Jonathan Britton | Director | 28 Apr 2014 | 27 Jul 2021 | British | 72 years |
| Jonathan Piers Daniel Linney | Director | 7 Dec 2017 | 7 Sept 2021 | British | 55 years |
| Keith Charles William Morgan | Director | 10 Dec 2013 | 31 Aug 2020 | British | 63 years |
| Maria Francisca Turner | Director | 28 Apr 2014 | 4 May 2015 | British | 59 years |
| Neeta Avnash Kaur Atkar | Director | 1 Jul 2016 | 30 Jun 2025 | British | 61 years |
| Patrick John Magee | Director | 18 Jul 2013 | 16 Oct 2014 | British | 56 years |
| Patrick John Magee | Director | 10 Mar 2015 | 1 Jul 2022 | British | 56 years |
| Philip Jeremy Piers | Director | 1 May 2021 | 4 Dec 2022 | British | 57 years |
| Robert Haldane Smith | Director | 5 Jul 2017 | 4 Oct 2023 | British | 82 years |
| Robert Steven Razzell | Director | 27 Jul 2024 | 4 Jul 2025 | British,irish | 47 years |
| Ronald Victor Emerson | Director | 29 Oct 2013 | 30 Sept 2016 | British | 79 years |
| Shanika Amarasekara | Secretary | 24 Jun 2014 | 14 Feb 2021 | British | - |
| Teresa Colomba Graham | Director | 24 Jun 2014 | 23 Jun 2017 | British | 70 years |